82079401 has 2 divisors, whose sum is σ = 82079402. Its totient is φ = 82079400.

The previous prime is 82079399. The next prime is 82079419. The reversal of 82079401 is 10497028.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54243225 + 27836176 = 7365^2 + 5276^2 .

It is a cyclic number.

It is not a de Polignac number, because 82079401 - 2¹ = 82079399 is a prime.

Together with 82079399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82079441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41039700 + 41039701.

It is an arithmetic number, because the mean of its divisors is an integer number (41039701).

Almost surely, 2^82079401 is an apocalyptic number.

It is an amenable number.

82079401 is a deficient number, since it is larger than the sum of its proper divisors (1).

82079401 is an equidigital number, since it uses as much as digits as its factorization.

82079401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 82079401 is about 9059.7682641445. The cubic root of 82079401 is about 434.5883294278.

The spelling of 82079401 in words is "eighty-two million, seventy-nine thousand, four hundred one".